1) Cover 2) Lay over 3) Overlie 4) Place 5) Place on top 6) Place on top of 7) Place over 8) Pose 9) Position 10) Spread over the surface 11) Superpose 12) Transfer 1) Cover 2) Overlay 3) Overstrike 4) Superinduce 
• (v. t.) To lay or impose on something else; as, a stratum of earth superimposed on another stratum.
To place one element over another to create stacking of images or overlays
Su`per·im·pose' transitive verb [ imperfect & past participle Superimposed ; present participle & verbal noun Superimposing .] To lay or impose on something else; as, a stratum of earth superimposed on another stratum. -- 
put something on the top 
To place one element over another to create stacking of images or overlays. 
[v] - place on top of
superimpose 1. To lay or place (something) on or over something else. 2. To add as a distinct feature, element, or quality: 'She superimposed her own interpretation when she retold the story.' 3. To put or join as an addition (usually followed by on or upon). 4. In motion Pictures and television; to print (an image) over another image so that both...
to impose, place, or set over, above, or on something else. · to put or join as an addition (usually fol. by on or upon). · to print (an image) over another image so that both are seen at once: The credits were superimposed over the opening scene.
[SAT terms] place on top of place on top of